package cn.airfei.netty.nettyexample.websocket;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.handler.codec.http.websocketx.TextWebSocketFrame;
import io.netty.handler.codec.http.websocketx.WebSocketFrame;

import java.time.LocalDateTime;

/**
 * @description:
 * @author: air
 * @create: 2021-01-20 17:06
 */
public class SocketServerHandler extends SimpleChannelInboundHandler<TextWebSocketFrame> {

    @Override
    protected void channelRead0(ChannelHandlerContext ctx, TextWebSocketFrame msg) throws Exception {
        System.out.println("服务端收到消息"+msg.text());
        ctx.channel().writeAndFlush(new TextWebSocketFrame("服务器时间:"+ LocalDateTime.now()+" "+msg.text() ));
    }

    // web客户端连接时触发
    @Override
    public void handlerAdded(ChannelHandlerContext ctx) throws Exception {
        System.out.println("handlerAdded 被调用"+ctx.channel().id().asLongText());
    }

    @Override
    public void handlerRemoved(ChannelHandlerContext ctx) throws Exception {
        System.out.println("handlerRemoved 被调用"+ctx.channel().id().asLongText());
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        System.out.println("exceptionCaught 被调用"+ctx.channel().id().asLongText());
        ctx.channel().close();
    }
}
